Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Fabrication of Metallic Sandwich Plates with Inner Dimpled Shell Structure and Static Bending Test

딤플형 내부구조 금속 샌드위치 판재의 제작 및 정적 굽힘 실험

  • 성대용 (한국과학기술원 기계공학과) ;
  • 정창균 (한국과학기술원 기계공학과) ;
  • 윤석준 (한국과학기술원 기계공학과) ;
  • 이상훈 (조선대학교 기계공학과) ;
  • 안동규 (조선대학교 기계공학과) ;
  • 양동열 (한국과학기술원 기계공학과)
  • Published : 2006.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

Metallic sandwich plates with various inner cores have important new features with not only ultra-light material characteristics and load bearing function but also multifunctional characteristics. Because of production possibility on the large scale and a good geometric precision, sandwich plates with inner dimpled shell structure from a single material have advantages as compared with other solid sandwich plates. Inner dimpled shell structures can be fabricated with press or roll forming process, and then bonded with two face sheets by multi-point resistance welding or adhesive bonding. Elasto-plastic bending behavior of sandwich plates have been predicted analytically and measured. The measurements have shown that elastic perfectly plastic approximation can be conveniently employed with less than 10% error in elastic stiffness, collapse load, and energy absorption. The dominant collapse modes are face buckling and bonding failure after yielding. Sandwich plates with inner dimpled shell structure can absorb more energy than other types of sandwich plates during the bending behavior.

Keywords

References

  1. Waldley, H. N. G, 2003, 'Fabrication and Structural Performance of Periodic Cellular Metal Sandwich Structures,' Compos. Sci. Technol., Vol. 63, pp. 2331-2343 https://doi.org/10.1016/S0266-3538(03)00266-5
  2. Ashby, M. F., Evans, A. G, Fleck, N. A., Gibson, L. J., Hutchinson, J. W., Wadley, H. G N., 2000, 'Metal Foams: a Design Guide,' Butterworth-Heinemann, Boston
  3. Wicks, N., Hutchinson, J. W., 2001, 'Optimal Truss Plates,' International Journal of Solids and Structures, Vol.38, pp. 5165-5183 https://doi.org/10.1016/S0020-7683(00)00315-2
  4. Zok, F. W., Waltner, S. A., Wei, Z., Rathbun, H. J., McMeeking, R. M., Evans, A. G, 2004, 'A Protocol for Characterizing the Structural Performance of Metallic Sandwich Panels: Application to Pyramidal Truss Cores,' International Journal of Solids and Structures, Vol. 40, pp. 6249-6271 https://doi.org/10.1016/j.ijsolstr.2004.05.045
  5. Lim, J. H., Nah, S. J, Koo, M. H., Kang, K. J., 2005, 'Compressive and Bending Behavior of Sandwich Panels with Octet Truss Core Fabricated from Wires,' J. of the Korean Society of Mechanical Engineers, Vol. 29, No. 3, pp. 470-476 https://doi.org/10.3795/KSME-A.2005.29.3.470
  6. Kang, K. J., Jeon, G P., Nab, S. J., Ju, B. S., 2004, 'A New Way to Manufacture Ultra Light Metal Structures,' J. of the Korean Society of Mechanical Engineers, Vol. 28, No. 3, pp. 296-303 https://doi.org/10.3795/KSME-A.2004.28.3.296
  7. Kang, K. J., Jeon, G P., Nab, S. J., Ju, B. S., 2004, 'A New Way to Manufacture Ultra Light Metal Structures,' J. of the Korean Society of Mechanical Engineers, Vol. 28, No. 3, pp. 296-303 https://doi.org/10.3795/KSME-A.2004.28.3.296
  8. Jung, C. G, Yoon, S. J., Yang D. Y., Lee, S. M., Na, S. J., Lee, S. H., Ahn D. G, 2005, 'Basic Study in Fabrication and Mechanical Characteristics of Ultra Light Inner Structured and Bonded(ISB) Panel Containing Perpendicularly Woven Metal,' Journal of the Korea Society of Precision Engineering, Vol. 22, No .5, pp. l52-l58
  9. Ahn, D. G, Lee, S. H., Kim, M. S., Hahn, G. Y., Jung, C. G, Yang, D. Y., 2004, 'Investigation into Characteristics of Bending Stiffness and Failure for ISB Panel,' Conference of the Korea Society of Precision Engineering, autumn, pp. 1274-1277
  10. Seong, D. Y. Jung, C. G, Yoon, S. J., Yang, D. Y., 2005, 'Optimal Design of Metallic Sandwich Plates with Inner Dimpled Shell Subjected to 3-Point Bending,' Conference of the Korea Society of Precision Engineering, spring, pp. 702-705
  11. Li, M. Z., Cai, Z. Y., Sui, Z., Yan, Q. G., 2002, 'Multi-Point Forming Technology for Sheet Metal,' Journal of Materials Processing Technology, Vol. 129, pp. 333-338 https://doi.org/10.1016/S0924-0136(02)00685-4
  12. ASTM, 1995, 'Standard Test Method for Semi-Guided Bend Test for Ductility of Metallic Materials,' E270
  13. Deshpande, V. S., Fleck, N. A., 2001, 'Collapse of Truss Core Sandwich Beams in 3-Point Bending,' International Journal of Solids and Structures, Vol. 38, pp. 6275-6305 https://doi.org/10.1016/S0020-7683(01)00103-2

Cited by

  1. A Study on Large Area Roll Projection Welding for Metallic Sandwich Plate : Part 1 - Process Monitoring vol.27, pp.3, 2009, https://doi.org/10.5781/KWJS.2009.27.3.085
  2. Research trends of metallic sandwich plates with single layer periodically repeated metallic inner structures (PRMIS) - focused on design, manufacturing and formability vol.2, pp.4, 2015, https://doi.org/10.1007/s40684-015-0046-3